Media settings for subdomains?

Hi folks,

I created a subdomain today that will be used to host all css, javascript and images. It was created in cpanel with the subdomain as ‘img’ and the document root as ‘public_html/img’. For example the subdomain is https://img.mysite.com.

I want all future images that i upload through the wordpress media library to go to https://img.mysite.com/images.

What do i need to input in the 2 boxes on the media settings page ‘store uploads in this folder’ and ‘full url path to files’??

I have tried a few combinations but with no luck so far.

A big thanks to anyone that can help.